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DD::Image::ShaderOp Class Reference

#include <ShaderOp.h>

Inheritance diagram for DD::Image::ShaderOp:
DD::Image::Op DD::Image::MaterialOpI DD::Image::CoShaderMaterialInterface DD::Image::SurfaceShaderOp

Public Member Functions

OpgetOp () override
 Return the Op this interface is attached to, or the override Op if assigned.
 
void setOverrideOp (Op *op) override
 
void clearOverrideOp () override
 
OpgetOverrideOp () const override
 
virtual MaterialOpIasMaterialOp ()
 Return this ShaderOp cast to the MaterialOpI interface, if it supports translation.
 
 ShaderOp (Node *)
 
const char * node_shape () const override
 Define the material op's shape in the DAG.
 
unsigned node_color () const override
 All material operators default to a orangish color.
 
bool test_input (int node_input, Op *op) const override
 
Opdefault_input (int node_input) const override
 
IoptextureInput (int32_t node_input) const
 Return the input Op cast to an Iop, if possible.
 
- Public Member Functions inherited from DD::Image::Op
PrevalidateResult preValidate (ViewerContext *ctx=nullptr, PreValidateContext *=nullptr)
 
OprootOp () const
 
bool preValidateAborted (int treeStartingVersion, PrevalidateResult &result) const
 
const OutputSetgetOutputs () const
 return all the outputs of this node
 
virtual void setInputsValid (bool nowValid)
 set whether the input ops are valid (are for the right context)
 
bool inputsValid () const
 return whether the input ops are valid (are for the right context)
 
virtual bool can_clone () const
 returns whether or not an op can be cloned in the dag
 
bool haveHash () const
 return true if the hash() value is meaningful and globally unique
 
bool varyingOutputHash () const
 
void setVaryingOutputHash (bool varyingHashes)
 Set the varyingOutputHash indicator to a specific state.
 
void enableVaryingOutputHash ()
 Enable the varyingOutputHash indicator.
 
virtual Hash editState () const
 
virtual void setEditState (const Hash &h)
 
virtual std::vector< DD::Image::OutputContextgetPrevVersionsWanted () const
 
virtual const MetaData::Bundle_fetchMetaData (const char *keyname)
 
const MetaData::BundlefetchMetaData (const char *keyname)
 
Node * node () const
 
DD::Image::NodeI * getNode () const
 
void node (Node *v)
 
const char * nodeName () const
 Return NodeI::name() which is the Node's local name with no parent path.
 
std::string nodeFullPath (char separator='.') const
 
Hash nodeTopologyHash () const
 
OpfirstOp () const
 
void firstOp (Op *v)
 
Opparent () const
 
void parent (Op *lpOp)
 
virtual void detach ()
 node has been deleted in DAG
 
virtual void attach ()
 node has been created in DAG
 
virtual void pre_write_knobs ()
 
void knobStorePrep (const OutputContext &storeContext)
 
virtual void knobs (Knob_Callback)
 
void knobStorePost (const OutputContext &storeContext, Hash &hash)
 
int replace_knobs (Knob *afterthis, int n, void(*f)(void *, Knob_Callback), void *, const char *fileExt=nullptr)
 
int add_knobs (void(*f)(void *, Knob_Callback), void *, Knob_Callback)
 
void set_unlicensed ()
 
Knobknob (const char *name) const
 
Knobknob (int) const
 
bool pushed () const
 
bool panel_visible () const
 
bool node_disabled () const
 
bool node_selected () const
 
unsigned node_gl_color () const
 
void * field (const char *name)
 
void * field (const char *name, int &type)
 
void * set_field (const char *name, const void *source, int size)
 
void * get_field (const char *name, void *dest, int size)
 
void beginHandle (HandleType command, ViewerContext *ctx, EventCallback *cb, int index, float x=0, float y=0, float z=0, ViewerContext::Cursor cursor=ViewerContext::kNoCursor)
 
void endHandle (ViewerContext *ctx)
 
virtual int knob_changed (Knob *)
 
virtual int knob_change_finished (Knob *knob, bool changedByUser=true)
 
void addTime (OpTimer::Category category, long long microsecondsCPU, long long microsecondsWall, bool isTopLevel=true)
 
void getPerformanceInfo (OpTimer::Category category, OpTimer::PerformanceInfo &info) const
 return the amount of CPU time taken by this op
 
virtual bool inputs_clockwise () const
 whether unconnected inputs on the DAG should be arranged clockwise or anticlockwise (default)
 
virtual std::vector< int > input_order () const
 
virtual int inputArrows (int nodeInputs) const
 
bool script_command (const char *command, bool py=true, bool eval=true) const
 
bool script_expand (const char *str) const
 
HandlesMode anyHandles (ViewerContext *ctx)
 
virtual void build_handles (ViewerContext *)
 
void add_draw_handle (ViewerContext *)
 
virtual void draw_handle (ViewerContext *)
 
virtual void add_input_handle (int input, ViewerContext *)
 
void add_op_handle (ViewerContext *ctx)
 
void add_knob_handle (Knob *, ViewerContext *)
 
virtual int getViewableModes () const
 
virtual int optional_input () const
 
virtual int minimum_inputs () const
 
virtual int maximum_inputs () const
 
virtual bool test_input (int, Op *) const
 
int inputs () const
 
int node_inputs () const
 
Opnode_input (int, GenerateType=OUTPUT_OP) const
 
Opnode_input (int, GenerateType, const DD::Image::OutputContext *outputContext) const
 
Opinput_op (int n=0) const
 
virtual void inputs (int n)
 
Opinput (int) const
 
int inputNumber (int input, int offset) const
 
Opinput (int input, int offset) const
 
Opinput0 () const
 return the primary input
 
Opinput1 () const
 return the second input, if it exists
 
const std::vector< Op * > & getInputs () const
 
const std::vector< Op * > & getChildren () const
 
virtual void set_input (int i, Op *op, int input, int offset)
 
void set_input0 (Op *op)
 
void set_input (int i, Op *op)
 
void set_input (int i, Op &op)
 
void set_input (int input, int offset, Op *op)
 
const OutputContextoutputContext () const
 
virtual void setOutputContext (const OutputContext &c)
 
virtual void append (Hash &)
 
virtual float uses_input (int) const
 
virtual void build_splits ()
 
virtual int split_input (int) const
 
virtual const OutputContextinputContext (int n, int offset, OutputContext &) const
 
virtual const OutputContextinputUIContext (int n, OutputContext &) const
 
virtual Opdefault_input (int) const
 
const Hashhash () const
 
virtual bool frameTransformImplemented () const
 
virtual bool frameTransformDownstream (const OutputContext &context, unsigned int input, float inFrame, float &outFrame) const
 
virtual bool frameTransformUpstream (const OutputContext &context, unsigned int input, float outFrame, float &inFrame) const
 
virtual DopeItemFlags::Mask getDopeItemFlags () const
 
virtual bool shouldHideInDopeSheet (Knob *knob) const
 
virtual DD::Image::KnobgetDopeItemKnob () const
 
virtual ViewSet viewsProduced () const
 
virtual ViewSet viewsWantOn (int i) const
 
virtual ViewSet splitForViews () const
 
bool requested () const
 
void setRequested ()
 
void forgetRequestShallow ()
 
void forget_request ()
 
void forget_request (std::set< Op * > &forgotten)
 
virtual const char * node_shape () const
 
DD::Image::Hash curveHash () const
 
bool opCurrent () const
 
virtual unsigned node_color () const
 
virtual const char * node_help () const =0
 
virtual const char * input_label (int, char *) const
 
virtual std::string input_longlabel (int) const
 
void node_redraw ()
 
void print_name (std::ostream &o) const
 
NodeContext nodeContext () const
 
std::string node_name () const
 Returns the same string as printed by print_name(ostream).
 
void invalidateSameHash ()
 
bool invalidate ()
 
bool invalidate (const Hash &hash)
 
bool update (const Box *=nullptr)
 
void asapUpdate ()
 
void asapUpdate (const Box &box, int direction=0)
 
void validate (bool for_real=true)
 
virtual void force_validate (bool for_real=true)
 
void update_handles () const
 
bool valid () const
 Returns true if it has been validated - including if there was an error.
 
bool real_valid () const
 Returns true if it has been real-validated - including if there was an error.
 
bool inErrorState () const
 
bool inInvalidState () const
 
bool opened () const
 
void open ()
 
void unopen ()
 
bool running () const
 
void running (bool v)
 
bool not_closed () const
 
void close ()
 
void callCloseAfter (double seconds)
 
void copyState (Op *input)
 
bool cached () const
 
void cached (bool b)
 
virtual bool inUse () const
 
virtual Executableexecutable ()
 
void setKnobsToContext (const OutputContext &, bool force=false)
 
void gotoContext (const OutputContext &, bool update)
 
void progressFraction (double fraction, StatusFlags flags=StatusNone)
 
void progressFraction (int a, int b, StatusFlags flags=StatusNone)
 
void progressMessage (const char *fmt,...)
 
void progressModalMessage (const char *fmt,...)
 
void progressDismiss ()
 
int slowness () const
 
void slowness (int newval)
 
virtual bool firstEngineRendersWholeRequest () const
 
virtual bool updateUI (const OutputContext &context)
 
const Formatinput_format () const
 
const OutputContextuiContext () const
 
void error (const char *fmt,...)
 
void warning (const char *fmt,...)
 
void critical (const char *fmt,...)
 
void debug (const char *fmt,...)
 
void abort () const
 Abort all trees the op is in.
 
bool aborted () const
 True if one of the trees the op is in was aborted; ops should check this while processing and return quickly when true.
 
void cancel () const
 Cancel all trees the op is in. Make sure you also call abort() to stop processing.
 
bool cancelled () const
 True if one of the trees the op is in was cancelled (by user interaction)
 
bool addToTree (OpTree *lpTree)
 Returns true if the op was added to the tree, or false if its reference count increased.
 
bool removeFromTree (OpTree *lpTree)
 Returns false if the op was removed from the tree, or true if its reference count decreased.
 
bool isInTree (OpTree *lpTree) const
 Checks if an op is in a particular tree, for debugging purposes.
 
bool isInAnyTree () const
 Checks if an op is in any tree at all.
 
OpTreeHandlergetTreeHandler () const
 Returns the treeHandler for a given Op.
 
bool hasError () const
 
bool opOrChildHasError () const
 
const OpgetErroredOp () const
 
void setPopUpScheme (PopUpScheme lScheme)
 
PopUpScheme getPopUpScheme () const
 
bool arePopUpsEnabled ()
 Returns whether a pop-up should be enabled for the next message, modifying internal data when necessary.
 
OpMessageHandlergetMsgHandler ()
 
const OpMessageHandlergetMsgHandler () const
 
std::string getDebugInfo () const
 Returns a string of debug information about the op. For internal use.
 
std::string getDetailedDebugInfo () const
 
bool tryValidate (bool for_real=true)
 
virtual Iopiop ()
 Cast to an Iop. This is much cheaper and safer than using dynamic_cast.
 
virtual const Iopiop () const
 
virtual GeoOpgeoOp ()
 Cast to a GeoOp. This is much cheaper and safer than using dynamic_cast.
 
virtual const GeoOpgeoOp () const
 
virtual GeomOpgeomOp ()
 Cast to a GeomOp. This is much cheaper and safer than using dynamic_cast.
 
virtual const GeomOpgeomOp () const
 
virtual ParticleOpparticleOp ()
 Cast to a ParticleOp. This is much cheaper and safer than using dynamic_cast.
 
virtual const ParticleOpparticleOp () const
 
virtual DeepOnlyOpdeepOnlyOp ()
 Cast to a DeepOnlyOp. This is much cheaper and safer than using dynamic_cast.
 
virtual const DeepOnlyOpdeepOnlyOp () const
 
virtual AxisOpaxisOp ()
 Cast to an AxisOp. This is much cheaper and safer than using dynamic_cast.
 
virtual const AxisOpaxisOp () const
 
virtual CameraOpcameraOp ()
 Cast to an CameraOp. This is much cheaper and safer than using dynamic_cast.
 
virtual const CameraOpcameraOp () const
 
virtual LightOplightOp ()
 Cast to an LightOp. This is much cheaper and safer than using dynamic_cast.
 
virtual const LightOplightOp () const
 
virtual std::string getLibraryName () const
 Return a label and version string to display library version info for the Node.
 
virtual VersionInfo getLibraryVersion () const
 
virtual OpHints opHints () const
 Return hints to control when and how this op will be evaluated by the top-down system.
 
virtual const char * Class () const =0
 
const std::string libraryDisplayName () const
 
virtual const char * displayName () const
 
virtual std::string docsPath () const
 
virtual bool onAction (const ViewerContext *c, const DD::Image::Flags f, void *d)
 
Opget (const Description *description)
 
- Public Member Functions inherited from DD::Image::MaterialOpI
virtual OpgetOp ()
 Return the Op this interface is attached to. Should return 'this'.
 
virtual void setOverrideOp (Op *)
 
virtual void clearOverrideOp ()
 Disable any assigned override Op.
 
virtual OpgetOverrideOp () const
 Return the override Op used for shader property value updating.
 
virtual usg::TokenArray getAppliedApiSchemas () const
 Returns a list of API's this output shader must implement.
 
virtual const char * getOutputSchema () const
 
virtual int32_t getOutputType () const
 
bool isCoShader () const
 Convenience to check output type.
 
bool isSurfaceShader () const
 
bool isLightShader () const
 
bool isVolumeShader () const
 
virtual std::string getShaderNodeName (const usg::Token &target_renderer=usg::Token())
 
virtual int32_t connectionTypeForNodeInput (int32_t node_input) const
 
virtual usg::ShaderDesc * createShaderGraph (int32_t output_type, const MaterialContext &rtx, usg::ShaderDescGroup &shader_group)
 
virtual usg::ShaderDesc * createShaderGraphFromOp (Op *input_op, const MaterialContext &rtx, usg::ShaderDescGroup &shader_group)
 
virtual void updateShaderGraphOverrides (int32_t output_type, const MaterialContext &rtx, usg::ShaderDescGroup &shader_group)
 
virtual void updateShaderGraphFromOp (Op *input_op, const MaterialContext &rtx, usg::ShaderDescGroup &shader_group)
 

Static Public Member Functions

static usg::ShaderDesc * createIopInterfaceGraph (Iop *input_iop, int32_t output_type, const MaterialContext &rtx, usg::ShaderDescGroup &shader_group)
 Create the ShaderDescs required to interface to an Iop texture source.
 
static void updateIopInterfaceGraphOverrides (Iop *input_iop, int32_t output_type, const MaterialContext &rtx, usg::ShaderDescGroup &shader_group)
 Update the ShaderDescs required to interface to an Iop texture source.
 
static usg::ShaderDesc * createCoShaderInterfaceGraph (ShaderOp *input_coshader, int32_t output_type, const MaterialContext &rtx, usg::ShaderDescGroup &shader_group)
 Create the ShaderDescs required to interface to a CoShader source.
 
static void updateCoShaderInterfaceGraphOverrides (ShaderOp *input_coshader, int32_t output_type, const MaterialContext &rtx, usg::ShaderDescGroup &shader_group)
 Update the ShaderDescs required to interface to a CoShader source.
 
- Static Public Member Functions inherited from DD::Image::Op
static int treeVersion ()
 
static bool nukeBusy ()
 is nuke processing something on a parallel thread?
 
static Opcreate (Node *node, const char *name, Op *p_op)
 
static Opcreate (const char *name, Op *p_op)
 
static void resetTimers ()
 reset all the performance timers
 
static void setTimingEnabled (bool enabled)
 turn performance timing on or off
 
static bool isTimingEnabled ()
 return whether performance timing is on or not
 
static const char * script_result (bool py=false)
 
static void script_unlock ()
 
static OpretrieveOp (const char *node_path, GenerateType generate_op_type, const OutputContext *generate_op_context=nullptr)
 
static OpretrieveOp (const char *node_path, const Hash &op_hash, int tree_version)
 
static void all_forget_request ()
 
static void new_request_pass ()
 
static double callPendingClose (double seconds)
 
static void clearPendingClose ()
 
static Operror_op ()
 
static const char * error_message ()
 
static void clearAbortAndError ()
 To be removed.
 
static void SetDefaultPopUpEnable (bool lEnable)
 This is used by Nuke to indicate when ops using the default pop-up scheme should show pop-ups. Not recommended for customisation.
 
static std::string getVersionInfoStr (const VersionInfo &versionInfo)
 Helper function to convert a VersionInfo tuple into a string.
 
static const Descriptionfind_description (const char *name, const Op *op_)
 
static int message_f (char t, const char *,...)
 
static int message_vf (char t, const char *, va_list)
 
static void add_timeout (float t, TimeoutHandler, void *v=nullptr)
 
static void repeat_timeout (float t, TimeoutHandler, void *=nullptr)
 
static bool has_timeout (TimeoutHandler, void *=nullptr)
 
static void remove_timeout (TimeoutHandler, void *=nullptr)
 
- Static Public Member Functions inherited from DD::Image::MaterialOpI
static std::string getNodeInstanceSuffix (DD::Image::Op *op)
 
static std::string buildName (const std::string &node_name, const char *schema_name)
 Convenience function builds a standard shader name with '<node_name>_<schema_name>'.
 
static std::string buildName (const usg::Token &target_renderer, const std::string &node_name, const char *schema_name)
 Convenience function builds a standard shader name with '<target_renderer>_<node_name>_<schema_name>'.
 
static int32_t getShaderTypeFromOp (Op *op)
 
static std::string getShaderNodeNameFromOp (const usg::Token &target_renderer, Op *op)
 
static const char * inputShaderTypeName (int32_t op_type)
 
static usg::ShaderDesc * createOpInterfaceShaderDesc (int32_t op_type, Op *op)
 
static usg::ShaderDesc * createOpInterfaceShaderDesc (Op *op)
 
static std::string buildAssetPath (Op *input_op)
 
static bool parseAssetPath (const std::string &path, std::string &nodePath, OutputContext &outputContext, Hash &opHash)
 
static OpretrieveOpFromAssetPath (const std::string &path)
 

Protected Attributes

Op_overrideOp
 Optional override Op to use for shader property value updating.
 
- Protected Attributes inherited from DD::Image::Op
bool _haveHash
 whether the _hash actually has been set by a call to invalidate(Hash) ever.
 
bool _varyingOutputHash
 whether the hash value will animate over time
 
Hash _editState
 Op's current edit state, usually the combination of input & knob edit states.
 

Additional Inherited Members

- Public Types inherited from DD::Image::Op
enum  HandlesMode { eNoHandles , eHandlesUncooked , eHandlesCooked , eHandlesMax }
 
enum  PrevalidateResult { eFinished , eCancelled , eAbandoned }
 This is a tribool return value. Do not extend.
 
enum  HandleType {
  eNone , eMouseLeftClick , eMouseRightClick , eMouseMove ,
  eMouseDrag , eMouseRelease , eSelectionChanged , eSelectionChangeFinished ,
  eHandleDragTranslate , eHandleDragRotate , eHandleDragScale , eHandleDragPivot ,
  eAllHandles
}
 
enum  ViewableModes { eViewableMode2D , eViewableMode3D , eViewableMode3D_2DReference }
 
enum  GenerateType {
  OUTPUT_OP , ANY_CONTEXT , INPUT_OP , INPUT_OP_PEEK ,
  EXECUTABLE , EXECUTABLE_SKIP , EXECUTABLE_INPUT , UICONTEXT_ONLY
}
 
enum  NodeContext { eNodeGraph , eTimeline , eOpGraph }
 
enum  StatusFlags { StatusNone , StatusModal , StatusUseCallback }
 
enum  PopUpScheme {
  ePU_Never , ePU_Done , ePU_Once , ePU_Default ,
  ePU_Always
}
 Pop-up schemes determine when pop-up messages are displayed for op errors. More...
 
enum  VersionComponents { eMajor , eMinor , ePoint , eRevision }
 Enum to help get the desired version component from the VersionInfo tuple.
 
typedef std::pair< int, DD::Image::Op * > Output
 Combination of input number and pointer to Op.
 
typedef std::set< OutputOutputSet
 Set of all outputs from this Op.
 
typedef std::map< Hash, std::vector< unsigned int > > ItemSelectionList
 
typedef bool() EventCallback(Op *op, EventContext eventCtx)
 
using VersionInfo = std::tuple< int, int, int, int >
 Contains version components with each index defined by the VersionComponents enum.
 
- Public Types inherited from DD::Image::MaterialOpI
enum  {
  INPUT_TYPE_NONE , INPUT_TYPE_OP , INPUT_TYPE_MATERIALOP , INPUT_TYPE_IOP ,
  INPUT_TYPE_AXISOP , INPUT_TYPE_CAMERAOP , INPUT_TYPE_LIGHTOP
}
 
enum  {
  OUTPUT_TYPE_NONE , OUTPUT_TYPE_COSHADER , OUTPUT_TYPE_SURFACESHADER , OUTPUT_TYPE_LIGHTSHADER ,
  OUTPUT_TYPE_VOLUMESHADER
}
 
- Public Attributes inherited from DD::Image::Op
const MetaData::BundlemetaCache
 
Hash metaCacheHash
 
- Static Public Attributes inherited from DD::Image::Op
static unsigned current_request_pass
 
static void(* node_redraw_cb )(const Op *)
 
static void(* print_name_cb )(std::ostream &, const Op *)
 
static void(* status_callback )(const Op *, float, float, const char *, StatusFlags)
 
static const int kInvalidVersion
 
static const VersionInfo kUnsetVersion
 
- Protected Member Functions inherited from DD::Image::Op
 Op (Node *node)
 The constructor is protected so only subclasses can create the base class.
 
virtual void _knobStorePrep (const OutputContext &storeContext)
 The subclass-specific portion of knobStorePrep(). See that method for more info.
 
virtual void _knobStorePost (const OutputContext &storeContext, Hash &hash)
 The subclass-specific portion of knobStorePost(). See that method for more info.
 
virtual void _invalidate ()
 
virtual void _validate (bool for_real)
 
virtual void _open ()
 
virtual void _close ()
 
Opcreate (Node *node, const char *name)
 
Opcreate (const char *name)
 
HandlesMode anyInputHandles (ViewerContext *)
 return if any of the inputs (recursively) wish to draw handles
 
HandlesMode anyKnobHandles (ViewerContext *)
 return if any of the knobs on this node wish to draw handles
 
void build_input_handles (ViewerContext *)
 
void build_knob_handles (ViewerContext *)
 
void disallowNoTrees ()
 Call this to tell the op that it should always have op trees for normal behaviour (for internal use)
 
virtual HandlesMode doAnyHandles (ViewerContext *ctx)
 
virtual PrevalidateResult doPreValidate (ViewerContext *ctx=nullptr, PreValidateContext *=nullptr)
 
- Protected Member Functions inherited from DD::Image::MaterialOpI
virtual bool overrideShaderDescInput (const char *knob_name, const MaterialContext &rtx, usg::ShaderDesc &shader_desc, const char *target_property_name, usg::Value::Type target_property_type_hint=usg::Value::Type::InvalidType)
 
virtual bool overrideShaderDescInput (const Channel &chan, const MaterialContext &rtx, usg::ShaderDesc &shader_desc, const char *target_property_name)
 
virtual bool overrideShaderDescInput (const Channel *chan_array, uint32_t num_channels, const MaterialContext &rtx, usg::ShaderDesc &shader_desc, const char *target_property_name)
 
virtual bool overrideShaderDescInput (const ChannelSet &channels, const MaterialContext &rtx, usg::ShaderDesc &shader_desc, const char *target_property_name)
 

Detailed Description

Op base class for shader creating nodes.

Note that unlike the legacy Material class, ShaderOp is explicitly not* an Iop subclass and will not automatically work as a 'texture' source for other shaders.

Connection of ShaderOps to legacy Material class Ops is not allowed! This is explicitly to avoid blending 'Shader' nodes with image nodes within the same graph branch to better delineate which is a texture source to a shader and what is the shader using those textures.

The previous Material class conflated these concepts leading to confusing results when Material nodes were mixed with Iop nodes. For example it did not make much sense to have a Diffuse shader followed by a Blur node since the Blur is not processing random, spatially-incoherent surface samples like a surface shader does. Plus the output of Blur did not affect the output of the Diffuse node, and yet that connection was allowed.

Member Function Documentation

◆ getOp()

Op * DD::Image::ShaderOp::getOp ( )
inlineoverridevirtual

Return the Op this interface is attached to, or the override Op if assigned.

Reimplemented from DD::Image::MaterialOpI.

Reimplemented in DD::Image::CoShaderMaterialInterface.

◆ setOverrideOp()

void DD::Image::ShaderOp::setOverrideOp ( Op op)
inlineoverridevirtual

Reimplemented from DD::Image::MaterialOpI.

◆ clearOverrideOp()

void DD::Image::ShaderOp::clearOverrideOp ( )
inlineoverridevirtual

Reimplemented from DD::Image::MaterialOpI.

◆ getOverrideOp()

Op * DD::Image::ShaderOp::getOverrideOp ( ) const
inlineoverridevirtual

Reimplemented from DD::Image::MaterialOpI.

◆ node_shape()

const char * DD::Image::ShaderOp::node_shape ( ) const
overridevirtual

Define the material op's shape in the DAG.

Reimplemented from DD::Image::Op.

◆ node_color()

unsigned DD::Image::ShaderOp::node_color ( ) const
overridevirtual

All material operators default to a orangish color.

Reimplemented from DD::Image::Op.

◆ test_input()

bool DD::Image::ShaderOp::test_input ( int  node_input,
Op op 
) const
overridevirtual

Allow ShaderOp or Iop connections only.

Connection to legacy 'Material' class is not allowed! This is done explicitly to avoid mixing up 'shader' nodes with 'image' nodes.

An Iop connection is explicitly a texture source, and a ShaderOp connection is explicitly a shader source.

connectionTypeForNodeInput() is queried to further restrict the connection to explicitly Iops or explicitly ShaderOps. If the input is a ShaderOp its getOutputType() method is queried to match the connection types, and false is returned if they don't.

Other input Op types are not handled in the base class implementation.

Reimplemented from DD::Image::Op.

References DD::Image::MaterialOpI::isCoShader().

◆ default_input()

Op * DD::Image::ShaderOp::default_input ( int  node_input) const
inlineoverridevirtual

Returns nullptr for all inputs, including 0.

This means any disconnected input will not be connected to any valid Op by default, and all Op::input() tests should check for a null pointer result.

Note that the default output of this Op type is NOT an Iop so do not expect the 'Black' default Iop to be automatically connected to a dangling input.

Reimplemented from DD::Image::Op.



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